asterisk: improved postgresql detection

network/asterisk/asterisk.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../asterisk/asterisk.conf
-# Copyright (C) 2009 The OpenSDE Project
+# Copyright (C) 2009 - 2011 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2004 Clifford Wolf
 #
@@ -34,7 +34,7 @@ makeinstopt="$makeopt install"
 
 var_append makeinstopt " " "samples"
 
-if pkginstalled postgresql; then
-	var_append GCC_WRAPPER_INSERT " " "-I/opt/postgresql/include"
-	var_append GCC_WRAPPER_INSERT " " "-L/opt/postgresql/lib"
+# postgresql support
+if pkginstalled -f postgresql; then
+	var_append extraconfopt ' ' "--with-postgres=$( pkgprefix -r postgresql )"
 fi